Start learning →

BECE (Ghana) Stars and Galaxies — practice questions

Explore 2 free Stars and Galaxies questions in BECE (Ghana) Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Stars and Galaxies with Quill →

Stars and Galaxies questions and exercises with answers

Showing questions 1–2 of 2.

What is a galaxy?Read the answer and worked solution →A star is described as four light years away. What does that measurement give?Read the answer and worked solution →

Worked practice questions

What is a galaxy?

  1. A huge group of stars, gas and dust
  2. A huge group of planets and moons
  3. A huge cloud of water and ice
  4. A huge ball of burning rock
Show answer and solution

Correct answer: A. A huge group of stars, gas and dust

1. A galaxy is a massive collection of stars together with gas and dust. 2. Gravity holds all of it together. 3. Our own galaxy, the Milky Way, holds about 200 billion stars, one of which is the Sun. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), The Milky Way Galaxy_

Open this question →

A star is described as four light years away. What does that measurement give?

  1. How long the star has lived
  2. How far away the star is
  3. How old the starlight is
  4. How bright the star looks
Show answer and solution

Correct answer: B. How far away the star is

1. Distances between stars are far too large for kilometres to be convenient. 2. Astronomers therefore use units built on the speed of light. 3. A light year is the distance that light travels in one year. 4. Even though a length of time appears in the name, the measurement is a distance. 5. So four light years tells us how far away the star is. 6. It does not tell us the age of the star or how bright it appears. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Light years, light hours and light minutes_

Open this question →

How to practise

  1. Choose a Stars and Galaxies question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Science topics

Visible LightElectric CircuitsChemical Reactions and EquationsThe Solar SystemAtoms and ElementsChanges of StateEcosystemsMicroorganisms